Wick-raiser for central-draft lamps.



PATENTED FEB, 28, 1905.

W. A. PENFIELD.

WIGK KAISER FOR CENTRAL DRAFT LAMPS.

APPLIOATION FILED DEC. 30, 1904.

lUhJlTlED YLEateuted February 28, 190%.,

Fi i C,

WlliLIAM ALLEN PENFIELD, OF MEBIDEN, CONNECTICUT, iliSSlGNOR TO THEBRADLEY & HUBBARD MFG. CO, OF h IERII DEN, CONNE "JTHJU'F, A

CORPORATION.

WlCM-WAlSlEl-i FOP! CENTRAL DRAFT LAlWPiS.

SPECIFICATIDN' forming part of Letters Patent No. 783,799, datedFebruary 28, 1905.

Application filed December 80, 1904:. Serial No. 238,896.

To It IU/UOIII/ fl; 'IJ'ML concern:

pie it known that I, WILLIAM: ALLEN PEN- FIELD, a citizen of the UnitedStates, residing at Meriden, in the county of New Haven and 5 State ofConnecticut, have invented a new and useful improvement in ick-Raisersfor Central-Draft Lamps; and I do hereby declare the following, whentaken in connection with the accompanying drawings, and the fig- 1 uresof reference marked -thereon, to be a full, clear, and exact descriptionof the same, and which said drawings constitute part of thisspecification, and represent, in

Figure l, a side View, partially in section, of such parts of acentral-draft lamp as are necessary to illustrate my improvedwick-raiser; Fig. 2, a top or plan view of the same with the upper endof the wick-arresting spindle broken away; Fig. 3, a broken side view of2 the wick-carrier and rack connected there with, the upper end of thewick-tube being broken away to show the spring wick-gripping jaws andillustrating the cngagementof the lug on the rack with the bridge.

This invention relates to an improvement in wiek-raisers forcentral-draft lamps, and particularly to such as are provided with arack and pinion for adjusting the wick, the object of the inventionbeing a simple arrangement 3 of parts whereby the wick-holder may bereadily raised when desired to remove or adjust the wick with relationthereto and also to indicate when the wick has been burned to such anextent that adjustment is desirable; and the invention consists in theconstruction as hereinafter described, and particularly recited in theclaims.

In carrying out my invention I employ the usual tubular wickcarrier 2,shell 3, and 4 outer wick-tube 4:, through which the wickcarrierextends. Secured to the tube t within the shell 8 is a bridge 5, throughwhich the shank 6 of an adjusting-pinion 7 extends, the inner end of theshank being upset within the tube, so as to swivelly connect the samethereto. Secured to the lower end of the tube 4 is a rack 8, whichextends upward through the shell 3 and bridge 5, the teeth 9 of the rackmeshing with the pinion 6, so that as the pinion is turned the tube willbe raised or lowered. At a predetermined point on the forward face ofthe rack is a lug 10, adapted to engage with the lower edge of thebridge 5, as shown in Fig. 3, and thereby arrest the upward movement ofthe wick. The thickness of this rack is less than the space between thebridge and the tube, and when it is desired to raise the wick-tube, sothat the spring-jaws 11 thereof may be released from the wick, the rackis pressed inward toward the tube, so as to disengage the lug 10 fromthe lower end of the bridge and permit the same to pass upward throughthe bridge under the continued movement of the pinion. When raised sothat the spring-arms extend above the upper end of the wick-tube, theywill spring outward, thus releasing the wick and allowing it to beadjusted or removed, as desired. Upon turning "the pinion the rack movesdownward, turning the wick with i and after the lug passes below thebridge the rack moves outward, so as to bring the lug into the path ofthe edge of the bridge and so as to act as a stop to limit the upwardmovement of the rack, it being understood that the rack will yield topermit it to be pressed toward the tube, although it will normally bearagainst the inner face of the bridge, so as to assure the lug coming incontact with the lower edge thereof. To permit the rack to havesuliicient spring action, it maybe reduced in thickness near its lowerend, as indicated at 12 in Fig. 1.

It will thus be seen that by a very simple arrangement and withoutinterfering with the action thereof means are provided to arrest theupward movement of the wick at a predetermined point, and yet permit thewick to be raised and released from the wick-tube when desired.

Having fully described my invention, what 1 claim as new, and desire tosecure by Letters Patent, is

1. A wick-raiser for centrald'aft lamps comprising a wick-carrier, avertically-arranged rack connected therewith, a pinion enlug on saidrack adapted to engage with the lower edge of said bridge, and a pinionengaging with said rack for raising and lowering the same, substantiallyas described.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

WILLIAM ALLEN PENFIELD.

IVitnesses:

WI LIAM A. HALL, C. l). NEWBURY.

